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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-21 13:44:29 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -13.2705 Longitude: 154.5223 Position from underway logging |
| Sample number: | in2019_v04_D33-030 |
| Dredge: | D33 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | grey-light | white | green |
| Composition: | mafic |
| Alteration: | Mn crust |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 10 |
| Groundmass: | microcrystaline | altered |
| Sample bagged: | yes |
| Bucket number: | 50 |
| Rock name: | Highly altered basalt clast in Mn nodule |
| Comments: | Mn crust 30 mm thick. Similar to D33-021 and -025 to -032, pervasive veins and fracturing |